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Five Years of Service
Posts: 163
Threads: 70
Certificate error and MITM. 02-04-2020, 09:18 AM
#1
Hello,
In a local network when a browser show "certificate error", then can it a sign of MITM attack?
The browser, date and time and...are up to date.
Thank you.
Twelve Years of Service
Posts: 72,627
Threads: 307
RE: Certificate error and MITM. 02-04-2020, 10:55 AM
#2
(02-04-2020, 09:18 AM)Hack3rcon Wrote: In a local network when a browser show "certificate error", then can it a sign of MITM attack?
No, It could be due to numerous reasons.
(02-04-2020, 09:18 AM)Hack3rcon Wrote: The browser, date and time and...are up to date.
Check the date & time In the BIOS and set It accordingly.
If (for example) It's dated one year back, your PC will think that the certificate has expired, hence will throw an error.
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Five Years of Service
Posts: 163
Threads: 70
RE: Certificate error and MITM. 02-04-2020, 12:40 PM
#3
As I said, everything is OK. I want to know that in a local network with a Fortinet gateway, can anyone that access to the gateway launched this kind of attack?
Twelve Years of Service
Posts: 72,627
Threads: 307
RE: Certificate error and MITM. 02-04-2020, 01:33 PM
#4
(02-04-2020, 12:40 PM)Hack3rcon Wrote: As I said, everything is OK. I want to know that in a local network with a Fortinet gateway, can anyone that access to the gateway launched this kind of attack?
Quote:As I said, everything is OK
You didn't mention the BIOS.
A MITM attack can be generated In just about any environment. You've expressed your concern pertaining to a certificate error, and that's what I've addressed.
Five Years of Service
Posts: 163
Threads: 70
RE: Certificate error and MITM. 02-05-2020, 01:42 PM
#5
(02-04-2020, 01:33 PM)mothered Wrote: (02-04-2020, 12:40 PM)Hack3rcon Wrote: As I said, everything is OK. I want to know that in a local network with a Fortinet gateway, can anyone that access to the gateway launched this kind of attack?
Quote:As I said, everything is OK
You didn't mention the BIOS.
A MITM attack can be generated In just about any environment. You've expressed your concern pertaining to a certificate error, and that's what I've addressed.
How can I find MITM attack ?
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Ten Years of Service
Posts: 180
Threads: 29
RE: Certificate error and MITM. 02-11-2020, 01:35 PM
#6
yes unless you put an ip block on your replacement page server.
(This post was last modified: 02-11-2020, 01:35 PM by Num5kull.)
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Twelve Years of Service
Posts: 72,627
Threads: 307
RE: Certificate error and MITM. 02-11-2020, 02:12 PM
#7
(02-05-2020, 01:42 PM)Hack3rcon Wrote: (02-04-2020, 01:33 PM)mothered Wrote: (02-04-2020, 12:40 PM)Hack3rcon Wrote: As I said, everything is OK. I want to know that in a local network with a Fortinet gateway, can anyone that access to the gateway launched this kind of attack?
Quote:As I said, everything is OK
You didn't mention the BIOS.
A MITM attack can be generated In just about any environment. You've expressed your concern pertaining to a certificate error, and that's what I've addressed.
How can I find MITM attack ?
I've completely missed this notification.
In terms of detecting/Identifying MITM attacks, have a look at
this.
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